Electrically heated mold



2 sheets-Sheet 1 }za 3 }as FIG. 5

June ll, 1968 HEATING SOURCE '|8 ZNVENTORS. THEODORE E IRVINE WILLIAM c. MAITHONIS BY qenf June ll, 1968 IRVINE ETAL 3,387,333

ELECTRI CALLY HBATED MOLD F11ed Jan 27 1965 2 SheetS-Sheet FIG.7

FIG.6

INVENTORS` THEODORE F |RVINE WILLIAM C MAITHONIS UNITED More 338Zl0 j/1929 7/1943 2/19j7 7/19j8 ll/19j8 4/196S 8 Renwick. Lobl Z19S29 Wolf Z1934j Custer 21934j Glazier et al. 338208 Ma et al 219S28 

